US6371458B1 - Spring mattress - Google Patents

Spring mattress Download PDF

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Publication number
US6371458B1
US6371458B1 US09/424,788 US42478899A US6371458B1 US 6371458 B1 US6371458 B1 US 6371458B1 US 42478899 A US42478899 A US 42478899A US 6371458 B1 US6371458 B1 US 6371458B1
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US
United States
Prior art keywords
mattress
coil springs
biasing elements
strip pieces
layers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US09/424,788
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English (en)
Inventor
NilsEric Stjerna
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Starsprings AB
Original Assignee
Stjernfjadrar AB
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Filing date
Publication date
Application filed by Stjernfjadrar AB filed Critical Stjernfjadrar AB
Assigned to STJERNFJADRAR AB reassignment STJERNFJADRAR AB ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STJERNA, NILS ERIC
Application granted granted Critical
Publication of US6371458B1 publication Critical patent/US6371458B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
    • A47C27/06—Spring inlays
    • A47C27/063—Spring inlays wrapped or otherwise protected
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/48—Upholstered article making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/48—Upholstered article making
    • Y10T29/481—Method

Definitions

  • the present invention relates to a spring mattress comprising a plurality of interconnected coil-spring elements.
  • the mattress having at least two layers extending in parallel with the plane of the mattress and each exhibiting a different properties of resilience.
  • Quality spring mattresses today normally comprise two superposed layers of coil springs disposed between the bed frame and the surface of the mattress.
  • the springs in one of the spring layers are enclosed in an external cover, usually made from a textile material.
  • an external cover usually made from a textile material.
  • a mattress of the kind referred to which improves the user's comfort because the layer having the lesser bias is turned towards the surface of the mattress and/or because the springs occupying this layer are individually resilient.
  • FIG. 1 is a view of a part of a spring mattress in accordance with one embodiment of the invention, as seen from the side,
  • FIG. 2 is a view from below of the spring mattress of FIG. 1 .
  • FIG. 3 is a view of a larger part of the spring mattress of FIG. 1 as seen from below, and
  • FIG. 4 is an exploded view of the interconnecting tie strips in accordance with one embodiment of the invention.
  • FIG. 1 illustrates in a lateral view one layer of springs in accordance with the invention
  • FIG. 2 illustrates the same layer of springs in a view from below.
  • the mattress in accordance with the invention comprises only one single layer of coil springs 1 , extending resiliently between the bed frame and the surface of the mattress. Parts of these springs, for instance the lower half or a central part of the springs, are biased, as will be described in more detail in the following, resulting in the formation of at least two layers exhibiting different properties of resilience but wherein the same springs extend through both layers.
  • strip pieces 2 attached in such a manner as to extend between two turns 1 a and 1 b in the springs.
  • strip pieces 2 having an I-shaped configuration are used, allowing the strip pieces to be anchored to two neighboring springs as shown in the appended drawing figures.
  • Strips 3 and 4 which may be flat, are attached on the top and on the lower faces, respectively, of the I-shaped strip pieces by means of spot welding or the like.
  • one point of attachment 5 a , 5 b is located internally of a turn of each spring and a further point of attachment 5 c intermediate the springs in each pair of adjoining springs.
  • the biasing force of the springs is easily adapted to the desired strength.
  • the biasing means consisting of the strip pieces arranged as described above, are advantageously positioned in succession along lines 6 , 7 , 8 extending in parallel with one another and in parallel with the plane of the mattress, as appears from FIG. 3 .
  • Each biasing means thus preferably joins together several pairs of neighboring springs, for instance two or three such pairs.
  • the springs of the mattress are interconnected and cooperate to absorb pressure exerted on the mattress while at the same time each spring may be compressed comparatively individually.
  • the latter property is desirable both for reasons of comfort and for preventing displacement of the mattress sides when a load is exerted on the middle region of the mattress.
  • the flat strips 3 therefore are divided in the above-mentioned manner whereas the flat strips 4 are not.
  • the strip pieces 2 having an I-shaped cross-section could either be completely divided or partly divided in such a manner as to be slit from the part facing the strip 3 and across part of its extension towards the strips 4 .
  • the biasing elements could be disposed in staggered relationship in the different lines 6 , 7 8 in the direction of extension of the individual lines.
  • the biasing elements 6 ′ in line 6 may be positioned in alignment with element 8 ′ in line 8 , elements 6 ′′ in alignment with elements 8 ′′ and so on, whereas elements 7 ′ and 7 ′′ and so on, positioned in line 7 intermediate lines 6 and 8 , may be displaced relative to the elements in lines 6 and 8 by a distance corresponding to one pair of springs. This staggered arrangement improves the stability and the integrity of the springs in the mattress.
  • the less biased layer is turned towards the surface of the mattress whereas the higher-bias layer is positioned underneath.
  • the springs are also individually resilient. This feature provides excellent qualities of comfort, since it means that the upper layer adapts to the geometry of the user's body with resulting even distribution of the carrying force.
  • the lower layer has a higher bias and consequently the springs in this layer will not be compressed, unless the force exceeds a predetermined threshold value which depends on the magnitude of the bias. This means that this layer will be compressed and be active in places where the user-induced depression is the highest, as is the case underneath the user's buttocks and shoulders, and consequently the user's spine will be straightened.
  • the biasing elements may be manufactured in the manner appearing from FIG. 4 .
  • a piece of strip 2 a is bent into U-shape and further strip pieces 2 b and 2 c , respectively, are attached to the external faces of the flanges of the U-shaped element, as illustrated by arrows 10 and 11 .
  • the pieces are joined together in attachment points 9 , by welding, gluing, clamping by means of clamps, clips or the like.
  • Further strips 3 , 4 are attached along their middle as seen in the transverse extension, to strips 2 b and 2 c , respectively, in attachment points 5 c.
  • the biasing elements may be pre-fabricated. Thereafter they are put in position on the springs, whereupon the strips 3 and 2 b , and 4 and 2 c , respectively, are joined together at the additional attachment points 5 a and 5 b as illustrated in FIG. 2 .
  • the biasing elements may be manufactured from textile materials, preferably of a kind that lends itself to welding.
  • Other materials such as e.g. plastics materials, non-rigid and pliable metal wire or the like, are of course also possible.
  • a mattress in accordance with the invention is a spring mattress of a kind comprising at least two layers exhibiting different properties of resilience but the springs of which extend across both layers, a feature which makes the manufacture and the assembly of the mattress both more convenient and less expensive than is the case with conventional mattresses.
  • the invention has been described herein with reference to one embodiment.
  • Other varieties of the invention are, however, possible.
  • the biasing elements may be used to bias only one spring at a time, the springs subsequently being joined together in the conventional manner.
  • the biased layers could also be disposed in the middle of or at the upper part of the mattress instead of, as described herein, at the lower part thereof.
  • the springs could have different degrees of bias along their extension, resulting in a mattress having several layers exhibiting different degrees of bias.

Landscapes

  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Springs (AREA)
  • Finger-Pressure Massage (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
US09/424,788 1997-05-30 1998-05-08 Spring mattress Expired - Fee Related US6371458B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9702045 1997-05-30
SE9702045A SE510483C2 (sv) 1997-05-30 1997-05-30 Resårmadrass och metod att åstadkomma en dylik
PCT/SE1998/000844 WO1998053724A1 (fr) 1997-05-30 1998-05-08 Matelas a ressorts

Publications (1)

Publication Number Publication Date
US6371458B1 true US6371458B1 (en) 2002-04-16

Family

ID=20407166

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/424,788 Expired - Fee Related US6371458B1 (en) 1997-05-30 1998-05-08 Spring mattress

Country Status (14)

Country Link
US (1) US6371458B1 (fr)
EP (1) EP0989814B1 (fr)
AT (1) ATE233508T1 (fr)
AU (1) AU730239B2 (fr)
BR (1) BR9809523A (fr)
CA (1) CA2287522C (fr)
DE (1) DE69811887T2 (fr)
DK (1) DK0989814T3 (fr)
NO (1) NO319721B1 (fr)
NZ (1) NZ501182A (fr)
PL (1) PL188913B1 (fr)
RU (1) RU2215458C2 (fr)
SE (1) SE510483C2 (fr)
WO (1) WO1998053724A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8117700B2 (en) 2007-02-26 2012-02-21 Howard John Hunter Mattress system and method
US20160073789A1 (en) * 2013-05-08 2016-03-17 You Bed Ab Furniture device with adjustable firmness
CN110099587A (zh) * 2016-12-15 2019-08-06 丝涟科技有限责任公司 开放式螺旋弹簧组件

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104257160A (zh) * 2014-10-21 2015-01-07 李国栋 一种软硬可调床垫

Citations (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US882600A (en) * 1907-06-14 1908-03-24 Albert Weborg Furniture-spring.
US1111076A (en) * 1910-12-24 1914-09-22 William Lewis Bed-spring.
US1150754A (en) * 1912-08-05 1915-08-17 Jackson Cushion Spring Company Spring structure.
US1155392A (en) * 1913-11-04 1915-10-05 Leonard A Young Spring structure.
US1248956A (en) * 1917-04-04 1917-12-04 Vincent Alward Company Spring-cushion.
US1261655A (en) 1914-06-18 1918-04-02 Barcalo Mfg Co Spring-bottom for beds and the like.
US1418469A (en) 1921-06-13 1922-06-06 L A Young Ind Inc Spring-seat construction
DE477710C (de) 1929-06-12 Heinrich Treiber Sprungfedermatratze
GB430564A (en) 1934-12-24 1935-06-20 John Hilton Improvements relating to the interconnection of upholstery springs
US2054868A (en) * 1935-04-22 1936-09-22 Schwartzman Jacob Bedspring
US2129251A (en) * 1938-04-01 1938-09-06 George F Venzke Bedspring
US2184517A (en) * 1937-01-25 1939-12-26 Smith & Davis Mfg Company Bedspring
US2348897A (en) * 1942-06-06 1944-05-16 Gladstone Benjamin Spring for beds or mattresses
US2657740A (en) * 1951-09-24 1953-11-03 Ford Motor Co Spring seat structure
US2724842A (en) * 1952-03-12 1955-11-29 Rogovy Max Innerspring mattress
US3009171A (en) * 1958-07-14 1961-11-21 Comfort Spring Corp Mattress
US3198508A (en) * 1964-08-07 1965-08-03 Jamco Inc Spacer for insertion between adjacent convolutions of a coil spring
US3206759A (en) * 1964-03-18 1965-09-14 Eclipse Sleep Products Inc Stabilizers
US3608107A (en) * 1969-09-24 1971-09-28 Boris Kentor Mattress spring with adjustable firmness
US3674250A (en) * 1970-09-30 1972-07-04 Louis Joseph Spacer and stabilizer for insertion between adjacent convolutions of an automobile coil spring
US3866896A (en) * 1973-04-02 1975-02-18 Crawford Howard E Resilient coil spring adjuster and method of fabrication
US4895352A (en) * 1989-01-09 1990-01-23 Simmons Company Mattress or cushion spring array
US5063625A (en) * 1989-04-10 1991-11-12 Perry Leroy R Adjustable tensioning of a mattress
US5149064A (en) * 1991-03-19 1992-09-22 Steadley Company Foundation unit edge support system
US5363522A (en) * 1994-03-02 1994-11-15 Hickory Springs Manufacturing Company Spring assembly and perimeter support spring therefor
WO1999035081A1 (fr) * 1997-12-19 1999-07-15 Stjernfjädrar Ab Matelas a doubles ressorts et son procede de production
WO1999034711A1 (fr) * 1997-12-19 1999-07-15 Stjernfjädrar Ab Matelas a ressorts
US5927696A (en) * 1997-05-01 1999-07-27 Hagemeister; Robert Campbell Spring elements and articles of manufacture incorporating the same
US6049959A (en) * 1995-05-08 2000-04-18 Dux Design Ab Method and machine for making a spring-mattress web and a spring-mattress web
US6175997B1 (en) * 1998-01-22 2001-01-23 L&P Property Management Company Pocketed coil spring mattress cores
US6186483B1 (en) * 1997-08-26 2001-02-13 L&P Property Management Company Preloaded spring assembly
US6260223B1 (en) * 1999-12-15 2001-07-17 Leggett & Platt, Incorporated Pocketed coil spring units

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO59281C (no) * 1935-09-16 1938-04-25 Hilton John Anordning ved fjaersystemer for springmadrasser

Patent Citations (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE477710C (de) 1929-06-12 Heinrich Treiber Sprungfedermatratze
US882600A (en) * 1907-06-14 1908-03-24 Albert Weborg Furniture-spring.
US1111076A (en) * 1910-12-24 1914-09-22 William Lewis Bed-spring.
US1150754A (en) * 1912-08-05 1915-08-17 Jackson Cushion Spring Company Spring structure.
US1155392A (en) * 1913-11-04 1915-10-05 Leonard A Young Spring structure.
US1261655A (en) 1914-06-18 1918-04-02 Barcalo Mfg Co Spring-bottom for beds and the like.
US1248956A (en) * 1917-04-04 1917-12-04 Vincent Alward Company Spring-cushion.
US1418469A (en) 1921-06-13 1922-06-06 L A Young Ind Inc Spring-seat construction
GB430564A (en) 1934-12-24 1935-06-20 John Hilton Improvements relating to the interconnection of upholstery springs
US2054868A (en) * 1935-04-22 1936-09-22 Schwartzman Jacob Bedspring
US2184517A (en) * 1937-01-25 1939-12-26 Smith & Davis Mfg Company Bedspring
US2129251A (en) * 1938-04-01 1938-09-06 George F Venzke Bedspring
US2348897A (en) * 1942-06-06 1944-05-16 Gladstone Benjamin Spring for beds or mattresses
US2657740A (en) * 1951-09-24 1953-11-03 Ford Motor Co Spring seat structure
US2724842A (en) * 1952-03-12 1955-11-29 Rogovy Max Innerspring mattress
US3009171A (en) * 1958-07-14 1961-11-21 Comfort Spring Corp Mattress
US3206759A (en) * 1964-03-18 1965-09-14 Eclipse Sleep Products Inc Stabilizers
US3198508A (en) * 1964-08-07 1965-08-03 Jamco Inc Spacer for insertion between adjacent convolutions of a coil spring
US3608107A (en) * 1969-09-24 1971-09-28 Boris Kentor Mattress spring with adjustable firmness
US3674250A (en) * 1970-09-30 1972-07-04 Louis Joseph Spacer and stabilizer for insertion between adjacent convolutions of an automobile coil spring
US3866896A (en) * 1973-04-02 1975-02-18 Crawford Howard E Resilient coil spring adjuster and method of fabrication
US4895352A (en) * 1989-01-09 1990-01-23 Simmons Company Mattress or cushion spring array
US5063625A (en) * 1989-04-10 1991-11-12 Perry Leroy R Adjustable tensioning of a mattress
US5149064A (en) * 1991-03-19 1992-09-22 Steadley Company Foundation unit edge support system
US5363522A (en) * 1994-03-02 1994-11-15 Hickory Springs Manufacturing Company Spring assembly and perimeter support spring therefor
US6049959A (en) * 1995-05-08 2000-04-18 Dux Design Ab Method and machine for making a spring-mattress web and a spring-mattress web
US5927696A (en) * 1997-05-01 1999-07-27 Hagemeister; Robert Campbell Spring elements and articles of manufacture incorporating the same
US6186483B1 (en) * 1997-08-26 2001-02-13 L&P Property Management Company Preloaded spring assembly
WO1999035081A1 (fr) * 1997-12-19 1999-07-15 Stjernfjädrar Ab Matelas a doubles ressorts et son procede de production
WO1999034711A1 (fr) * 1997-12-19 1999-07-15 Stjernfjädrar Ab Matelas a ressorts
US6175997B1 (en) * 1998-01-22 2001-01-23 L&P Property Management Company Pocketed coil spring mattress cores
US6260223B1 (en) * 1999-12-15 2001-07-17 Leggett & Platt, Incorporated Pocketed coil spring units

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8117700B2 (en) 2007-02-26 2012-02-21 Howard John Hunter Mattress system and method
US8356371B2 (en) 2007-02-26 2013-01-22 Howard John Hunter Mattress system and method
US8935180B2 (en) 2007-02-26 2015-01-13 John Hunter HOWARD Mattress system and method
US20160073789A1 (en) * 2013-05-08 2016-03-17 You Bed Ab Furniture device with adjustable firmness
US10188218B2 (en) * 2013-05-08 2019-01-29 You Bed Ab Furniture device with adjustable firmness
US20190110605A1 (en) * 2013-05-08 2019-04-18 You Bed Ab Furniture device with adjustable firmness
US10694861B2 (en) * 2013-05-08 2020-06-30 You Bed Ab Furniture device with adjustable firmness
CN110099587A (zh) * 2016-12-15 2019-08-06 丝涟科技有限责任公司 开放式螺旋弹簧组件

Also Published As

Publication number Publication date
ATE233508T1 (de) 2003-03-15
AU8042398A (en) 1998-12-30
WO1998053724A1 (fr) 1998-12-03
EP0989814A1 (fr) 2000-04-05
NZ501182A (en) 2000-10-27
EP0989814B1 (fr) 2003-03-05
PL336428A1 (en) 2000-06-19
NO995760D0 (no) 1999-11-24
DK0989814T3 (da) 2003-06-23
NO319721B1 (no) 2005-09-05
AU730239B2 (en) 2001-03-01
CA2287522C (fr) 2007-01-09
BR9809523A (pt) 2000-06-20
RU2215458C2 (ru) 2003-11-10
NO995760L (no) 1999-11-24
SE9702045D0 (sv) 1997-05-30
SE9702045L (sv) 1998-12-01
SE510483C2 (sv) 1999-05-25
DE69811887D1 (de) 2003-04-10
PL188913B1 (pl) 2005-05-31
DE69811887T2 (de) 2003-11-20
CA2287522A1 (fr) 1998-12-03

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Owner name: STJERNFJADRAR AB, SWEDEN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STJERNA, NILS ERIC;REEL/FRAME:010527/0573

Effective date: 19991101

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Year of fee payment: 4

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Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

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Effective date: 20100416